8-1 EXPECTED RETURN A stock's returns have the following distribution: Rate of Return If this Demand Occurs Demand for the Company's Products Probability of this Demand Occurring 0.1 (30%) (14) 11 0.1 0.3 Weak Below average Average Above average Strong 20 0.3 45 0.2 1.0 Assume the risk-free rate is 2%. Calculate the stock's expected return, standard deviation, coefficient of variation, and Sharpe ratio